BRUEL & KJAER 4915 - Page 10

BRUEL & KJAER 4915

40 pages

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

POWER:

DISPLAY SELECTOR:

FUNCTION SELECTOR:

4

SHOCK

HAZARD:

Before

each use

of

the 4913

make

sure

that

the

lamp

drive

cable

is

properly

secured

so

that

it

does

not

become

entangled

with

operating

machinery

which

may

sever

the

high

voltage

drive

lines

of

the cable.

Also

avoid

dismantling

the

lamp

unit

without

first

referring

to

Chapter

5

of

this

Manual,

or

the

separate

Service

Manual

provided.

"On"

/"Off"

switch

for

mains

power.

When

it

is set

to

"On",

the

4-digit

LED

(Light

Emitting

Diode) DISPLAY

of

the 4913

should

light.

5-position

switch

for

selecting

the

following

indicating

modes

with

the

4-digit

LED DISPLAY.

"Trigger

Freq.".

Two

positions

for

display

of

internal

generator

or

external

trigger

frequency

in

"Hz"

or

equivalent

operating

speed in

"r

/min".

With

the

internal

generator

selected

as the

trigger

source,

the

display

range

is

from

5

to

105 Hz

or

300

to

6300

r/min

respectively,

whilst

with

an

external

trigger

source

it

is

from

5

to

10

kHz

or

300

to

600 k

r/min

respectively.

"Delay".

Single

position

for

display

of

phase

or

time

delay

of

the flash

ignition

with

respect

to

trigger

signal.

Display

range

O

to

360° and O

to

3,6

s.

"Slow

Motion".

Two

positions

indicating

the

apparent

frequency

"Hz"

or

speed

"r/min"

of

the

perceived

image

obtained

with

the

"Slow

Motion"

FUNCTION SELECTOR mode.

Display

range

is

from

0,05

to

5 Hz and 3

to

300

r/min

respectively.

8-position

switch

for

selecting

the

following

operating

modes.

"Light

Off". Stand

by

-

lamp

off

mode

with

display

of

phase

delay,

trigger

or

slow

motion

frequency

readout

chosen

with

the DISPLAY

SELECTOR.

"Phase

Delay".

Selects

flash

ignition

with

adjustable

O

to

360°

phase

delay

with

respect

to

trigger

signal.

Permits

stationary

image

of

rotat-

ing and

reciprocating

machinery

to

be

obtained,

which

using

the DELAY

knob

may

be

moved

through

one

complete

motion

cycle. See

section

3.2.2.

"Slow

Motion".

Selects

flash

ignition

synchronized

with

the

fundamen-

tal

(or

sub-multiple)

of

the

trigger

signal

minus

the

frequency

set

with

the

"Slow

Motion"

knob.

Permits

slow

moving

image

of

rotating

and

reciprocating

machinery

to

be

obtained,

whose

apparent

frequency

(or

speed)

may

be

adjusted

from

approximately

0,05

to

5 Hz (3

to

300

r/min)

regardless

of

the

motion

frequency

or

operating

speed

of

the

machinery.

See

section

3.2.4.

"Time

Delay".

Selects

flash

ignition

with

adjustable

"0-36

ms",

"0-

360

ms"

or

"0-3,6

s"

time

delay

with

respect

to

trigger

signal.

Permits

stationary

image

of

rotating

and

reciprocating

machinery

to

be

ob-

tained,

which

may

be

moved

through

part

or

one

or

more

motion

cycles

using

the

DELAY

knob.

The

"Time

Delay"

setting,

may

also

be used in

photographing

of

single

events. See

sections

3.2.3 and 3.6

respectively.

Table of Contents